Egbert munn dixon



i (No Model.)

R..1VI. DIXON.

VALVE.

No. 554,915 Patlented Feb. 18, 1896.

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IlNirnD STATES ROBERT MUNN DIXON, vOF EAST ORANGE, NEIV JERSEY, ASSIGNOR TO TIIE SAFETY OAR HEATING AND LIGHTING COMPANY, OF NEV YORK, N. Y.

VALVE.

SPECIFICATION forming part of Letters Patent N o. 554,91 5, dated February 18, 1896.

Application le'd March 14, 1895.

To all whom t may concern:

Be it known that I, ROBERT MUNN DIXON,

of East Orange, county of Essex, State of New i valve, includinga j acket-joint, is undesirable.

My valve is especially designed to be used in connection with a car for iilling a gas-tank upon a car, but its use is not confined Within those limits.

2o In the accompanying drawings, Figure I is a side elevation of my valve. Fig. II is atop plan view, Fig. III an end view, and Fig. IV a central longitudinal section, thereof.

Referring to the figures on the drawings, 1

indicates a pipe-jointv having a longitudinal bore 2 interrupted by a septum 3, which defines upon opposite sides of its ports 4 and 5.

G indicates a disk plate which is preferably cast with the joint above the ports 4 and 5 3o and concentric with the former.

7 indicates an annular rim which surrounds and deiines `the disk and forms a close-iitting seat for the disk-base 8 of the valve-case 9. The valve-ease contains a neatly-fitting trans- 3 5 versely-movable valve 10, that may be driven by a screw 11 screwing into the top of the valve. Rotary movement of the valve is prevented, as' by a screw 12 screwing into the side of the valve-case and entering a longi- 4o tudinal groove 13 in the side of the valve. The valve is double packed. For example, the bottom of the valve vis provided with a packing-disk 14, which, when the valve is driven down, forms a close joint with the 4 5 valve-seat at the top of port 4. Upon its lower end the valve-case is provided with an annular flange 15, above which is supported a movable annular packing-joint 16, which iits closely into a recess provided for it within 5o the valve-case when the valve is elevated, an d forms therewith a tight joint. A circular Serial No. 541,778. (No model.)

chamber 17, formed in the upper part of the pipe-joint 1 and' in the under side of the base 8, provides for the free movement of the valve and communication between the ports 4 and 5. 5 5 By this means it will be perceived that all leakage of gas can be prevented when the packingdisk 14 is closed over the port 4, or, on the other hand, when the port is open and the packing-ring 16 is forced into its seat in the 6o valve-case. The screw 11 is held revolubly fixed, as by an annular ring 18, that fits into a groove 19 in the stem of the screw and that is held in place by a bonnet 2O screwing on the outside of the valve-case, and iixed as by a set-screw 21. The head 22 of the screw is provided with the usual notches 23 for operating it.

I/Vhat I claim is- 1. The combination with pipe, septum and 7o ports, of a valve-case above the ports provided with an annular valve-seat, a valve within the valve-case provided with a packing-disk and a packing-rin g adapted, respectively to form a tight joint between the valve and one of the ports and to be seated within the valve-seat of the casing, means for preventing the rotation of the valve, a screw actuating the valve and provided with a stem projecting through the top of the valve-case, 8o said stem being provided with an annular groove immediately above the valve-case and with a head above the groove, a detachable ring supported upon the valve-case and engaging the groove in the valve-stem, and a bonnet screwed upon the valve-case clamping the annular ring thereto and inclosing the head of the valve-screw stem, substantially as specified.

2. The combination with a pipe,septum and 9o ports, of a valve-case above the ports provided with an annular valve-seat, a valve within the valve-case provided with a packing-disk and a packing-ring adapted, respectively, to form a tight joint between the valve and one of the ports and to be seated within the valve-seat of the casing, means for preventing the rotation of the valve, a screw actuating the valve and provided with a stem projecting through the top of the valve-case, 1 oo said stem being provided with an annular l groove immediately above the valve-case and with a head above the groove, a detachable ring supported upon the valveoase and engaging the groove in the Valve-stem, a bonnet screwed upon the valve-case Clamping the an nular ring thereto and inclosing the head of the Valve-screw steln7 and means for securing the bonnet against rotation, substantially as speeied.

3. The combination With a pipe and ports, of a disk concentric with one of the ports and deined by an annular rim, a valve-ease provided with a disk-base Yfitting closely within the annular rim, means for securing the diskbase to the disk, and a valve Within the valve ease, substantially as specified.

4. The combination with a valve,valve-easing and valve-actuating sereW provided with an annular groove immediately above the ROBERT MUNN DIXON.

fitnessesz WILLIAM STEWARTI, JNo. J. MALLAY. 

